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osm-gps-map built-in balloon
1 | harbaum | 33 | /* |
2 | harbaum | 55 | * Copyright (C) 2008-2009 Till Harbaum <till@harbaum.org>. |
3 | harbaum | 33 | * |
4 | * This file is part of GPXView. | ||
5 | * | ||
6 | * GPXView is free software: you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation, either version 3 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * GPXView is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with GPXView. If not, see <http://www.gnu.org/licenses/>. | ||
18 | */ | ||
19 | |||
20 | #include "gpxview.h" | ||
21 | harbaum | 34 | #include <math.h> // for isnan |
22 | harbaum | 33 | |
23 | #ifdef ENABLE_OSM_GPS_MAP | ||
24 | #include "osm-gps-map.h" | ||
25 | #endif | ||
26 | |||
27 | harbaum | 55 | #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENSTREETMAP |
28 | harbaum | 48 | #define GPS_DEFAULT_ZOOM 13 |
29 | |||
30 | harbaum | 42 | /* equatorial radius in meters */ |
31 | #define EQ_RADIUS (6378137.0) | ||
32 | |||
33 | #define RAD2DEG(a) (((a)*180.0)/M_PI) | ||
34 | #define DEG2RAD(a) (((a)*M_PI)/180.0) | ||
35 | |||
36 | harbaum | 34 | #define PROXY_KEY "/system/http_proxy/" |
37 | |||
38 | static const char *get_proxy_uri(appdata_t *appdata) { | ||
39 | static char proxy_buffer[64] = ""; | ||
40 | harbaum | 33 | |
41 | /* use environment settings if preset */ | ||
42 | const char *proxy = g_getenv("http_proxy"); | ||
43 | if(proxy) { | ||
44 | printf("http_proxy: %s\n", proxy); | ||
45 | return proxy; | ||
46 | } | ||
47 | |||
48 | harbaum | 34 | /* ------------- get proxy settings -------------------- */ |
49 | if(gconf_client_get_bool(appdata->gconf_client, | ||
50 | PROXY_KEY "use_http_proxy", NULL)) { | ||
51 | harbaum | 33 | |
52 | harbaum | 34 | /* we can savely ignore things like "ignore_hosts" since we */ |
53 | /* are pretty sure not inside the net of one of our map renderers */ | ||
54 | /* (unless the user works at google :-) */ | ||
55 | |||
56 | /* get basic settings */ | ||
57 | char *host = | ||
58 | gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL); | ||
59 | if(host) { | ||
60 | int port = | ||
61 | gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL); | ||
62 | harbaum | 33 | |
63 | harbaum | 34 | snprintf(proxy_buffer, sizeof(proxy_buffer), |
64 | "http://%s:%u", host, port); | ||
65 | harbaum | 33 | |
66 | harbaum | 34 | g_free(host); |
67 | } | ||
68 | harbaum | 35 | return proxy_buffer; |
69 | harbaum | 34 | } |
70 | |||
71 | harbaum | 35 | return NULL; |
72 | harbaum | 33 | } |
73 | |||
74 | static void map_zoom(map_context_t *context, int step) { | ||
75 | harbaum | 48 | gint zoom; |
76 | harbaum | 33 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
77 | g_object_get(map, "zoom", &zoom, NULL); | ||
78 | zoom = osm_gps_map_set_zoom(map, zoom+step); | ||
79 | |||
80 | /* enable/disable zoom buttons as required */ | ||
81 | harbaum | 55 | gtk_widget_set_sensitive(context->zoomin, |
82 | zoom < osm_gps_map_source_get_max_zoom(MAP_SOURCE)); | ||
83 | gtk_widget_set_sensitive(context->zoomout, | ||
84 | zoom > osm_gps_map_source_get_min_zoom(MAP_SOURCE)); | ||
85 | harbaum | 48 | |
86 | harbaum | 56 | /* hmm ... this doesn't really work */ |
87 | osm_gps_map_osd_speed(map, zoom); | ||
88 | |||
89 | harbaum | 48 | /* save new zoom */ |
90 | context->appdata->map.zoom = zoom; | ||
91 | harbaum | 33 | } |
92 | |||
93 | static gboolean | ||
94 | cb_map_zoomin(GtkButton *button, map_context_t *context) { | ||
95 | map_zoom(context, +1); | ||
96 | return FALSE; | ||
97 | } | ||
98 | |||
99 | static gboolean | ||
100 | cb_map_zoomout(GtkButton *button, map_context_t *context) { | ||
101 | map_zoom(context, -1); | ||
102 | return FALSE; | ||
103 | } | ||
104 | |||
105 | static gboolean | ||
106 | cb_map_gps(GtkButton *button, map_context_t *context) { | ||
107 | harbaum | 34 | pos_t *refpos = get_pos(context->appdata); |
108 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { | ||
109 | harbaum | 35 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
110 | harbaum | 48 | refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM); |
111 | harbaum | 35 | } else { |
112 | /* no coordinates given: display the entire world */ | ||
113 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), | ||
114 | 0.0, 0.0, 1); | ||
115 | harbaum | 34 | } |
116 | harbaum | 33 | |
117 | return FALSE; | ||
118 | } | ||
119 | |||
120 | static GtkWidget | ||
121 | harbaum | 51 | *map_add_button(int icon, GCallback cb, gpointer data, |
122 | harbaum | 33 | char *tooltip) { |
123 | GtkWidget *button = gtk_button_new(); | ||
124 | harbaum | 51 | gtk_button_set_image(GTK_BUTTON(button), icon_get_widget(ICON_MISC, icon)); |
125 | harbaum | 33 | g_signal_connect(button, "clicked", cb, data); |
126 | #ifndef USE_MAEMO | ||
127 | gtk_widget_set_tooltip_text(button, tooltip); | ||
128 | #endif | ||
129 | return button; | ||
130 | } | ||
131 | |||
132 | harbaum | 55 | static int dist2pixel(map_context_t *context, float km, float lat) { |
133 | return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget)); | ||
134 | } | ||
135 | |||
136 | harbaum | 33 | static gboolean map_gps_update(gpointer data) { |
137 | map_context_t *context = (map_context_t*)data; | ||
138 | |||
139 | harbaum | 51 | /* get reference position ... */ |
140 | harbaum | 34 | pos_t *refpos = get_pos(context->appdata); |
141 | gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon); | ||
142 | harbaum | 33 | |
143 | harbaum | 51 | /* ... and enable "goto" button if it's valid */ |
144 | harbaum | 34 | gtk_widget_set_sensitive(context->gps, ok); |
145 | |||
146 | harbaum | 51 | if(ok) { |
147 | harbaum | 53 | float heading = NAN; |
148 | harbaum | 54 | int radius = 0; |
149 | harbaum | 51 | |
150 | harbaum | 53 | if(context->appdata->use_gps) { |
151 | heading = gps_get_heading(context->appdata); | ||
152 | |||
153 | /* get error */ | ||
154 | float eph = gps_get_eph(context->appdata); | ||
155 | harbaum | 55 | if(!isnan(eph)) |
156 | radius = dist2pixel(context, eph/1000, refpos->lat); | ||
157 | harbaum | 53 | } |
158 | |||
159 | g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL); | ||
160 | osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget), | ||
161 | harbaum | 51 | refpos->lat, refpos->lon, heading); |
162 | } else | ||
163 | osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget)); | ||
164 | |||
165 | harbaum | 33 | return TRUE; |
166 | } | ||
167 | |||
168 | harbaum | 35 | static gboolean on_map_configure(GtkWidget *widget, |
169 | GdkEventConfigure *event, | ||
170 | map_context_t *context) { | ||
171 | harbaum | 33 | |
172 | harbaum | 48 | /* set default values if they are invalid */ |
173 | if(!context->appdata->map.zoom || | ||
174 | isnan(context->appdata->map.pos.lat) || | ||
175 | isnan(context->appdata->map.pos.lon)) { | ||
176 | printf("no valid map position found\n"); | ||
177 | |||
178 | pos_t *refpos = get_pos(context->appdata); | ||
179 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { | ||
180 | /* use gps position if present */ | ||
181 | context->appdata->map.pos = *refpos; | ||
182 | context->appdata->map.zoom = GPS_DEFAULT_ZOOM; | ||
183 | } else { | ||
184 | /* use world map otherwise */ | ||
185 | context->appdata->map.pos.lat = 0.0; | ||
186 | context->appdata->map.pos.lon = 0.0; | ||
187 | context->appdata->map.zoom = 1; | ||
188 | } | ||
189 | } | ||
190 | harbaum | 35 | |
191 | harbaum | 48 | /* jump to initial position */ |
192 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), | ||
193 | context->appdata->map.pos.lat, | ||
194 | context->appdata->map.pos.lon, | ||
195 | context->appdata->map.zoom); | ||
196 | |||
197 | harbaum | 35 | return FALSE; |
198 | } | ||
199 | |||
200 | harbaum | 38 | static void map_draw_cachelist(GtkWidget *map, cache_t *cache) { |
201 | while(cache) { | ||
202 | GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type); | ||
203 | |||
204 | osm_gps_map_add_image(OSM_GPS_MAP(map), | ||
205 | cache->pos.lat, cache->pos.lon, icon); | ||
206 | |||
207 | cache = cache->next; | ||
208 | } | ||
209 | } | ||
210 | |||
211 | harbaum | 41 | static void |
212 | map_cachelist_nearest(cache_t *cache, pos_t *pos, | ||
213 | cache_t **result, float *distance) { | ||
214 | while(cache) { | ||
215 | float dist = | ||
216 | pow(cache->pos.lat - pos->lat, 2) + | ||
217 | pow(cache->pos.lon - pos->lon, 2); | ||
218 | |||
219 | if(!(dist > *distance)) { | ||
220 | *result = cache; | ||
221 | *distance = dist; | ||
222 | } | ||
223 | |||
224 | cache = cache->next; | ||
225 | } | ||
226 | } | ||
227 | |||
228 | static cache_t *map_closest(map_context_t *context, pos_t *pos) { | ||
229 | cache_t *result = NULL; | ||
230 | float distance = NAN; | ||
231 | |||
232 | #ifdef USE_MAEMO | ||
233 | if(!context->appdata->cur_gpx) { | ||
234 | #endif | ||
235 | /* search all geocaches */ | ||
236 | gpx_t *gpx = context->appdata->gpx; | ||
237 | while(gpx) { | ||
238 | map_cachelist_nearest(gpx->cache, pos, &result, &distance); | ||
239 | gpx = gpx->next; | ||
240 | } | ||
241 | #ifdef USE_MAEMO | ||
242 | } else { | ||
243 | map_cachelist_nearest(context->appdata->cur_gpx->cache, | ||
244 | pos, &result, &distance); | ||
245 | } | ||
246 | #endif | ||
247 | |||
248 | return result; | ||
249 | } | ||
250 | |||
251 | /* translate between osm-gps-map positions and gpxview ones */ | ||
252 | pos_t coord2pos(coord_t coo) { | ||
253 | pos_t pos; | ||
254 | pos.lat = RAD2DEG(coo.rlat); | ||
255 | pos.lon = RAD2DEG(coo.rlon); | ||
256 | return pos; | ||
257 | } | ||
258 | |||
259 | harbaum | 47 | #define CLICK_FUZZ (24) |
260 | harbaum | 42 | |
261 | harbaum | 41 | static gboolean |
262 | on_map_button_press_event(GtkWidget *widget, | ||
263 | GdkEventButton *event, map_context_t *context) { | ||
264 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); | ||
265 | |||
266 | harbaum | 44 | /* got a press event without release event? eat it! */ |
267 | if(context->press_on != NULL) { | ||
268 | printf("PRESS: already\n"); | ||
269 | return TRUE; | ||
270 | } | ||
271 | |||
272 | harbaum | 41 | pos_t pos = |
273 | harbaum | 42 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
274 | harbaum | 41 | |
275 | harbaum | 42 | cache_t *nearest = map_closest(context, &pos); |
276 | if(nearest) { | ||
277 | float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE); | ||
278 | harbaum | 44 | if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) |
279 | harbaum | 42 | context->press_on = nearest; |
280 | } | ||
281 | harbaum | 44 | |
282 | harbaum | 41 | return FALSE; |
283 | } | ||
284 | |||
285 | static gboolean | ||
286 | on_map_button_release_event(GtkWidget *widget, | ||
287 | GdkEventButton *event, map_context_t *context) { | ||
288 | harbaum | 48 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
289 | |||
290 | harbaum | 42 | if(context->press_on) { |
291 | harbaum | 57 | coord_t coo; |
292 | coo = osm_gps_map_get_co_ordinates(map, event->x, event->y); | ||
293 | |||
294 | harbaum | 42 | pos_t pos = |
295 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); | ||
296 | harbaum | 41 | |
297 | harbaum | 42 | cache_t *nearest = map_closest(context, &pos); |
298 | if(nearest && nearest == context->press_on) { | ||
299 | float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE); | ||
300 | harbaum | 57 | if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) { |
301 | |||
302 | osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon); | ||
303 | } | ||
304 | harbaum | 42 | } |
305 | harbaum | 44 | context->press_on = NULL; |
306 | harbaum | 48 | } else { |
307 | /* save new map position */ | ||
308 | gfloat lat, lon; | ||
309 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); | ||
310 | context->appdata->map.pos.lat = lat; | ||
311 | context->appdata->map.pos.lon = lon; | ||
312 | harbaum | 41 | } |
313 | |||
314 | return FALSE; | ||
315 | } | ||
316 | |||
317 | harbaum | 56 | static void on_window_destroy(GtkWidget *widget, map_context_t *context) { |
318 | appdata_t *appdata = context->appdata; | ||
319 | |||
320 | printf("destroy map window\n"); | ||
321 | |||
322 | harbaum | 48 | /* save map parameters */ |
323 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); | ||
324 | gint zoom; | ||
325 | g_object_get(map, "zoom", &zoom, NULL); | ||
326 | context->appdata->map.zoom = zoom; | ||
327 | harbaum | 44 | |
328 | harbaum | 48 | gfloat lat, lon; |
329 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); | ||
330 | context->appdata->map.pos.lat = lat; | ||
331 | context->appdata->map.pos.lon = lon; | ||
332 | |||
333 | harbaum | 40 | #if MAEMO_VERSION_MAJOR == 5 |
334 | /* restore cur_view */ | ||
335 | context->appdata->cur_view = context->old_view; | ||
336 | harbaum | 56 | #endif |
337 | harbaum | 40 | |
338 | gtk_timeout_remove(context->handler_id); | ||
339 | harbaum | 56 | |
340 | harbaum | 40 | g_free(context); |
341 | harbaum | 56 | appdata->map.context = NULL; |
342 | harbaum | 40 | } |
343 | |||
344 | harbaum | 33 | void map(appdata_t *appdata) { |
345 | harbaum | 56 | map_context_t *context = NULL; |
346 | |||
347 | /* if the map window already exists, just raise it */ | ||
348 | if(appdata->map.context) { | ||
349 | gtk_window_present(GTK_WINDOW(appdata->map.context->window)); | ||
350 | return; | ||
351 | } | ||
352 | |||
353 | context = appdata->map.context = g_new0(map_context_t, 1); | ||
354 | harbaum | 40 | context->appdata = appdata; |
355 | harbaum | 33 | |
356 | harbaum | 41 | GtkWidget *hbox = gtk_hbox_new(FALSE, 0); |
357 | |||
358 | char *path = g_strdup_printf("%s/map/", appdata->image_path); | ||
359 | const char *proxy = get_proxy_uri(appdata); | ||
360 | |||
361 | context->widget = g_object_new(OSM_TYPE_GPS_MAP, | ||
362 | harbaum | 55 | "map-source", MAP_SOURCE, |
363 | "tile-cache", path, | ||
364 | "auto-center", FALSE, | ||
365 | "record-trip-history", FALSE, | ||
366 | "show-trip-history", FALSE, | ||
367 | proxy?"proxy-uri":NULL, proxy, | ||
368 | harbaum | 41 | NULL); |
369 | |||
370 | g_free(path); | ||
371 | |||
372 | char *name = NULL; | ||
373 | #ifdef USE_MAEMO | ||
374 | if(!appdata->cur_gpx) { | ||
375 | #endif | ||
376 | /* draw all geocaches */ | ||
377 | gpx_t *gpx = appdata->gpx; | ||
378 | while(gpx) { | ||
379 | map_draw_cachelist(context->widget, gpx->cache); | ||
380 | gpx = gpx->next; | ||
381 | } | ||
382 | name = g_strdup(_("all geocaches")); | ||
383 | #ifdef USE_MAEMO | ||
384 | } else { | ||
385 | map_draw_cachelist(context->widget, appdata->cur_gpx->cache); | ||
386 | harbaum | 44 | name = g_strdup(appdata->cur_gpx->name); |
387 | harbaum | 41 | } |
388 | #endif | ||
389 | |||
390 | char *title = g_strdup_printf(_("Map - %s"), name); | ||
391 | g_free(name); | ||
392 | |||
393 | harbaum | 56 | #ifdef USE_MAEMO |
394 | #ifdef USE_STACKABLE_WINDOW | ||
395 | context->window = hildon_stackable_window_new(); | ||
396 | harbaum | 40 | #else |
397 | harbaum | 56 | context->window = hildon_window_new(); |
398 | #endif | ||
399 | #else | ||
400 | context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); | ||
401 | #endif | ||
402 | harbaum | 33 | |
403 | harbaum | 56 | gtk_window_set_title(GTK_WINDOW(context->window), title); |
404 | |||
405 | harbaum | 33 | #ifndef USE_MAEMO |
406 | harbaum | 56 | gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480); |
407 | harbaum | 33 | #endif |
408 | |||
409 | harbaum | 41 | g_free(title); |
410 | harbaum | 33 | |
411 | harbaum | 41 | g_signal_connect(G_OBJECT(context->widget), "configure-event", |
412 | G_CALLBACK(on_map_configure), context); | ||
413 | harbaum | 33 | |
414 | harbaum | 41 | g_signal_connect(G_OBJECT(context->widget), "button-press-event", |
415 | G_CALLBACK(on_map_button_press_event), context); | ||
416 | harbaum | 33 | |
417 | harbaum | 40 | g_signal_connect(G_OBJECT(context->widget), "button-release-event", |
418 | G_CALLBACK(on_map_button_release_event), context); | ||
419 | harbaum | 33 | |
420 | harbaum | 40 | gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget); |
421 | harbaum | 33 | /* zoom button box */ |
422 | GtkWidget *vbox = gtk_vbox_new(FALSE,0); | ||
423 | |||
424 | harbaum | 40 | context->zoomin = |
425 | harbaum | 51 | map_add_button(10, G_CALLBACK(cb_map_zoomin), |
426 | harbaum | 40 | context, _("Zoom in")); |
427 | gtk_box_pack_start(GTK_BOX(vbox), context->zoomin, FALSE, FALSE, 0); | ||
428 | harbaum | 33 | |
429 | harbaum | 40 | context->zoomout = |
430 | harbaum | 51 | map_add_button(11, G_CALLBACK(cb_map_zoomout), |
431 | harbaum | 40 | context, _("Zoom out")); |
432 | gtk_box_pack_start(GTK_BOX(vbox), context->zoomout, FALSE, FALSE, 0); | ||
433 | harbaum | 33 | |
434 | harbaum | 40 | context->gps = |
435 | harbaum | 51 | map_add_button(9, G_CALLBACK(cb_map_gps), |
436 | harbaum | 40 | context, _("Jump to GPS position")); |
437 | gtk_widget_set_sensitive(context->gps, FALSE); | ||
438 | harbaum | 56 | |
439 | harbaum | 33 | /* install handler for timed updates of the gps button */ |
440 | harbaum | 40 | context->handler_id = gtk_timeout_add(1000, map_gps_update, context); |
441 | gtk_box_pack_start(GTK_BOX(vbox), context->gps, FALSE, FALSE, 0); | ||
442 | harbaum | 33 | |
443 | gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0); | ||
444 | |||
445 | harbaum | 40 | #if MAEMO_VERSION_MAJOR == 5 |
446 | /* prevent some of the main screen things */ | ||
447 | context->old_view = appdata->cur_view; | ||
448 | appdata->cur_view = NULL; | ||
449 | harbaum | 56 | #endif |
450 | harbaum | 40 | |
451 | harbaum | 56 | g_signal_connect(G_OBJECT(context->window), "destroy", |
452 | harbaum | 40 | G_CALLBACK(on_window_destroy), context); |
453 | |||
454 | harbaum | 56 | gtk_container_add(GTK_CONTAINER(context->window), hbox); |
455 | gtk_widget_show_all(GTK_WIDGET(context->window)); | ||
456 | harbaum | 33 | } |